Beasts of Babylon — E.A. Copen

Gunslinger Anastasia Thorne won't stay dead. Ten years ago, monsters murdered Anastasia and her children. Now, she's back to hunt down the monsters responsible. She knows their names, their faces, and even where they're hiding. There's just one problem. No one in town believes her. When the sheriff refuses to help, Anastasia strikes a deal with the notorious outlaw, Jesse Gallagher instead. The pair ride into the mountains in search of vengeance, but the hunters quickly become the hunted. With the sheriff hot on their trail, ghouls on their heels, and werewolves and skin stealing monsters in the mountains, Jesse and Anastasia quickly find out they're outgunned and in for a long night. It's going to take more than silver bullets to put these monsters down.